use a dedicated CSS for gadget UI.

dream/platform/static/css/gadget_dream.css

+
+/*
+.left, .right { display: block; }
+.main_block  { display: block; }
+
+@media screen and (max-width:900px) {
+        .left, .right {
+              float: none;
+        }
+}
+
+
+
+nav { margin: 0; }
+
+.localnav {
+	margin:0 0 20px 0;
+}
+.ui-mobile-viewport .localnav li {
+	float:left;
+}
+.localnav .ui-btn-inner {
+	padding: .6em 10px;
+	font-size:80%;
+}
+
+*/
+
+
+ #main {
+    /* width: 850px; */
+    border-top: 2px solid #456;
+    border-left: 2px solid #456;
+    border-right: 2px solid #456;
+    border-bottom: 2px solid #456;
+    height: 600px;
+    border-bottom-left-radius: 10px;
+    border-bottom-right-radius: 10px;
+    border-top-left-radius: 10px;
+    border-top-right-radius: 10px;
+    background-color:#eaedef;
+}
+
+.graph_node, .window, .label {
+    background-color:white;
+    text-align:center;
+    z-index:23;
+    cursor:pointer;
+	  box-shadow: 2px 2px 19px #aaa;
+   -o-box-shadow: 2px 2px 19px #aaa;
+   -webkit-box-shadow: 2px 2px 19px #aaa;
+   -moz-box-shadow: 2px 2px 19px #aaa;
+}
+
+.graph_node, .window {
+    border:1px dotted gray;
+    width:5.7em;
+    height:4em;
+    position:absolute;
+    color:gray;
+    font-family:serif;
+    font-style:italic;
+    padding-top:0.9em;
+    font-size:0.9em;
+}
+
+path, ._jsPlumb_endpoint { cursor:pointer; }
+
+/* z index stuff */
+._jsPlumb_connector { z-index:18; }
+._jsPlumb_endpoint { z-index:19; }
+._jsPlumb_overlay { z-index:23; }
+
+._jsPlumb_connector._jsPlumb_hover {
+    z-index:21 !important;
+}
+
+._jsPlumb_endpoint._jsPlumb_hover {
+    z-index:22 !important;
+}
+
+._jsPlumb_overlay {
+  border:1px solid #346789;
+  opacity:0.8;
+  filter:alpha(opacity=80);
+  background-color:white;
+  color:black;
+  font-family:helvetica;
+  padding:0.5em;
+}
+
+#simulation_result {
+  height:200px;
+}

dream/platform/static/gadget/graph.html

@@ -6,7 +6,7 @@
   <title>DREAM</title>
   <link rel="stylesheet" href="http://code.jquery.com/ui/1.10.3/themes/smoothness/jquery-ui.css">
   <link rel="stylesheet" href="http://code.jquery.com/mobile/1.3.2/jquery.mobile-1.3.2.min.css">
-  <link rel="stylesheet" href="../css/dream2.css">
+  <link rel="stylesheet" href="../css/gadget_dream.css">
 
   <script type="text/javascript" src="http://code.jquery.com/jquery-1.9.1.js"></script>
   <script type="text/javascript" src="http://code.jquery.com/ui/1.10.3/jquery-ui.js"></script>